Feature: 1. Measuring Tool: Automatic marking tool is a new cost effective indoor marking tool. It can help you improve work efficiency and facilitate complex measurement work. This tool has vertical, horizontal, and many other functions. Adjustable base. 2. Easy to Operate: This self leveling rotating level has an intuitive operating interface, allowing one person to handle most leveling applications. 3. Excellent Visibility: Includes a highly visible red light beam with variable scanning angles, achieving maximum clarity in harsh lighting conditions. 4. 16.5 Feet Range: The ideal working range of this infrared level is 16.5 feet, which is an efficient solution to meet all your leveling needs. 5. Level Specification: Accuracy is ± 0.5 mm/1m (vertical and horizontal). Wavelength is 500nm. Speed is less than 1mW, Class II. Working temperature is 14°F to 104°F. Specification: Item Type: Infrared Level Product Material: ABS Weight: Approx. 198g / 7.0oz Battery Model: 2 x AAA Battery. Package List: 1 x Infrared Level1 x Tripod1 x Base